How about a ribbon? Will get you a great acoustic sound. Risky to buy second hand though.

There's lots of options for condensers and you really need to try them and find out what works best for you. Maybe try a Soundelux or a Microtech Gefell. The Akg C-414 would be great too. Or a good budget new option might be an AT4050 or something like that.
I'd recommend all of these over the newer model Neumanns.

what ribbon mics would you recommend around the price range that im looking at? i forgot to say that i was interested in those also. one of my favorite engineers is justin niebank who recorded the thunder from down under kieth urban(saw where your an ausi), says hes a fannatic of ribbon mics. but, its hard for me to try out different mics without buying them first, cause no one around here has any :(

you already have a decent LDC mic so a ribbon would be a great choise royer makes a good ribbon for the money 1200US but i have not heard anythink good about any of the budget ribbons. if you need to get something now, try a SDC like the jofensen. or a good old dynamic there is the sm57 that no studio should be with out but on accoustics i like a mic that no one has really heard of an EV 636 there old and not made any more but i have three there a darker sounding mic designed for public adress but use it as a far off mic about 1M away and over the sound hole with your tlm about a palm from infront of the 14th fret and hard pan them. you will get a wwwiiidddeee sterio image.

The Beyer ribbons are decent mics. Not in the Royer/Coles/AEA/RCA league, but neither is the price.
The new Nady ribbons and cheap enough, but I think the jury is still out as far as the quality is concerned.

happy easter everybody,
so i guess if im going for building up my project and i want quality stuff then i guess i should save and get a royer? ive heard good things about them also. im in that "cant make my mind up phase" cause i could get a good used c414. but i guess i would be going backwords a bit? i hate spending money, but i guess thats the buis were in huh. i already have the sm57. if theres any other directions to be pointed in then please holler at me! thanks!

Check out the new Peluso CECM6 small diaphragm condensers.

Gefell M300 gets great reviews. You simply cannot go wrong with Shure SM81,AKG 451,or Audio Technica 4051.All will do their job with minimal fiddling.

SD "pencil" condensers are most often employed on violin / fiddles in acoustic string instrument recordings, like Bluegrass. For acoustic guitars, mandos and dobros I have been seeing the Shure KSM series or the ATM 4033s in use most of the time.

I have not had the pleasure of using the KSM mics yet but I have been the owner of a pair of 4033's for ten years and I can vouch that they are one of the best all purpose mics available.

i'll second the 4033, and while i haven't used the KSM-44 on acoustic guitar, i have used it on tons of other stuff and it always impresses me. drum OH's, guitar cabs, and it can even sound pretty good on vox depending on the voice.